| 赵晨钰,毕 胜,卢 茜,李欣欣,陈晓玲,谢 平.脑卒中恢复期患者肘关节最大等长性屈伸运动时肩肘肌群表面肌电信号特征性研究[J].中国康复医学杂志,2018,(9):1036~1042 |
| 脑卒中恢复期患者肘关节最大等长性屈伸运动时肩肘肌群表面肌电信号特征性研究 点此下载全文 |
| 赵晨钰 毕 胜 卢 茜 李欣欣 陈晓玲 谢 平 |
| 解放军医学院，北京市，100853 |
| 基金项目：国家自然科学基金项目（81272162） |
| DOI： |
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| 摘要
目的：研究脑卒中恢复期患者肘关节最大等长性收缩时肩、肘关节相关肌肉表面肌电（sEMG）信号的特征。
方法：16例脑卒中恢复期患者和7例健康对照者。在肘关节作最大等长性收缩运动时，记录胸大肌、三角肌、肱二、肱三和肱桡肌的sEMG信号，计算相应肌肉的积分肌电值（iEMG）、均方根值（RMS）、协同收缩率（CSR）和肩肘关节的肌间相干性。
结果：肘关节屈伸运动时，患者的最大力值明显小于健康人，iEMG、RMS值明显小于健康人，差异有显著性意义（P<0.05）。患者屈肘时的CSR值明显大于健康人，差异有显著性意义（P<0.05）。患者肌间相干性小于健康人。
结论：恢复期脑卒中患者偏瘫上肢肌肉收缩功能下降，肘屈肌异常协同收缩明显增强，康复训练应以改变屈肌协同为主，可用表面肌电技术对脑卒中患者的异常协同进行定量评价。 |
| 关键词：脑卒中 表面肌电图 肩关节 肘关节 积分肌电值 相干性 |
| Features of surface electromyographic signal of shoulder and elbow muscle in convalescent stroke patients during elbow maximum isometric flexion and extension Download Fulltext |
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| Rehabilitation Medicine Center, Chinese PLA General Hospital, Beijing，100853 |
| Fund Project: |
| Abstract: |
| Abstract
Objective：To study the features of surface electromyography（sEMG）signal of the shoulder and elbow muscles in convalescent stroke patients during elbow maximum isometric contraction（MIC）.
Method：Sixteen stroke patients and seven healthy controls were recruited in this study. The signal of sEMG of pectoralis major（PM）,deltoid（DT）,biceps brachii（BB）,triceps brachii（TB）and brachioradialis（BRD）were recorded during maximum isometric voluntary elbow contraction. Integrated EMG（iEMG）,root mean square（RMS）,co-synergy ratio（CSR）and intermuscular coherence were compared.
Result：The patients’ maximum force were much less than healthy controls during elbow flexion and extension（P<0.05）. Meanwhile，there were significant differences in iEMG and RMS of the patients as compared with the controls’ corresponding muscle（P<0.05）. CSR of patients were higher than that of healthy controls during elbow flexion（P<0.05）,and coherence of patients was less than that of the controls.
Conclusion：Muscle contraction function of hemiplegic upper limb decline in the convalescent patients with stroke, and elbow flexor abnormal synergy were enhanced significantly. Rehabilitation training should be given priority to change the flexor synergy. Meanwhile, we can quantitatively measure the neuromuscular function of stroke patients through the surface electromyography. |
| Keywords:stroke surface electromyography shoulder joint elbow joint iEMG coherence |
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